Vehicle frame



July 10, 192s. 1,676,342

. D. G. MACKENZIE VEHICLE FRAME vrome?.

JulyV 1o, 1928. l 1,676,342

D. G. MACKENZIE VEHICLE FRAME Filed Feb. 8. 192e 2 sheets-smet 2 www Farmaci July 1o, 192s.

l @STA L fr f DONALD GonnoN'iuAc'xENzin, ou 'MT'REAE etuis-nii, ciiNAnAQ fvniiic'nn FRAMEQ i Application filed February 8, `1926. sanar-No. r86,703.

The .invention relates to a vehicle frame, r

as described in the Apresent specification and .illustrated in the accompanying ydrawings that'lform part ofthe same.

f The invention consists essentially ofl ther novel vfeatures of construction pointed out broadly and specificallyv in the claimsfor novelty following a description containing an explanation vin detail of form of the invention. a y

Y The-'objects of the invention aregto construct a frame suitable for a light car7 that will. meet the exigencies incidentall to. road travel; to insure'both rigidity and flexibility in" its 'functions ofl supportingthemotorg and the body'and in accommodating the vehicle to road inequalities entirely avoiding the ill effects of torsional strains common to-motor cars; to lower the cent-re of gravity of the vehicle; to satisfythe'demand; fora repairs; andgenerally to providefa durable,4

the line 3-3 in Figure 1;; o t, n of the fra1ne.-

light and eflicient frame forV the'rsupport` of the body, motor and other parts, ythat can `be produced at alow costfwithout affecting the serviceability. x

Y In the drawings,V Figure lis a oftheframe. Figure 2 is a longitudinal*midssection of the frame. u 1- Figure 3 is a horizontal sectionalzview `vof .Figui/'e4 'is a front elevation Figure 5 is a rear elevation of .the frame;

axle post.

Figure 6 is a side elevationof the frame. v Figure 7 is afrontfelevationof :the rear axle structure, showing theV positionlof the body suspension bar in re`la'tion thereto,

FigurefSy is a perspective' detail `of the torque rod.

y'Figure 9 isa perspective detail-of a rear Figure 10 is al-fragmen'tary rear V-post and vspring axle end. f v

Y Figure lli's a detailof the intermediate` upright forming the lcentral suspensiony point.

an f acceptablek plan view I daan er alle Figure 12 bracket. l, l t Y n jLikefnumerals of reference indicate correspondingzparts inthe various figures. Refer-ringjto :the drawings, the frame bars or tubesindicated bythe` numerals l() and 1l formi thelower longitudinal members and f tam' is 4avdetail of a j"king post"k converge in relation -to one another from the l frontv to` the rear of said frame.A Thel trussbars -12 and 13 arefsecured-vto the'front ends ofthelower bars l0 andi'fll and extend'rears wardly and upwardly tojoin' at the apex of the upright lframe*v 14EA .forvmed- "of the' bars 15 `v and 16l `in triangularformg. thisI frame bridging v the f longitudinal bars l0`A and` 1115. i v and .forming a central-*suspension lpoint 18,' Where the 'several truss'ibars'1'1-2,13yand 19 j together'to formapyramidyframe. y, :The rear endsuoffthe"longitudinal bars and frame bars 15l and-16 are 'rigidly secured l0 and `lljand the rearfend ofthewbar 19 i are rigidly secured 'tol thejournal `member 20,7 theVtwolongitudinals'son eithers'ide at the llower'end and the" truss bar l9-centrally at the upper end'of said journal member.k

. iThe transverse body Stringer 2l isfrig'idlyv secured tothe undersidesof the longitudinal f bars l0y and lily between the central s'uspenofthe longitudinalsifl .Y ,Y f The transverse 'body `Stringer to the; lundersides ioff the longitudinal bars l() fand 11 between .thecentral suspension joint ofthe journal member2() and-the rear sion point andthe framejandl the frontends complete width-.ofthe vehicle'- i The -meeting endsy of the trussfbar 12' and bar 13, andthel longitudinal bar 151 have the threaded` angle pins 23v extending therefrom ,bracketV 24 and secured thereto the-:nuts 25.- )The bra'ce rods 26 i andv 2 7 fextend from the'l truss bars and l13 r respectively f and meet centrally in the upperp'ortion of the 22 is secured I u ends of thel bars, said -stringere extending the' V `the longitudinal bars l0; and; ofr'the jtruss Y and through corresponding holes in thefront i bracket 24 and `are secu-red .thereto fby the Y threaded angle pin 28 and nut 29.

`rThe leaf springs 30 and 31. are 'securedr'to y y thetop` and bottom of.' the bracketr'2lk by thek plates A32 1and7i33v and strapsfBzL` and,

.35; thesesprings 'extending 'from4 both: ends of'thebracket' top'kandbottom.

The king post bracketsi36 are 'eachformed with a ringed end 37,"and a socket 39, said sockets being adapted to'jreceive the several ends of the springs30 and 31', and secured thereto by the bolts 40. The -king posts 41 are rigidly secured to the ringed ends 37 and form bearings for the' wheel spindles 42.

The stirrups 38 are pivoted to the longitudinal bars 104 and 11 at their junctions tial casing 48 andfthis differential casing 48 is formed with the bearing 49 on which the Y journal member is mounted. The rear leaf. springs 50 and 51 are secured to the rear bracket 47 by the plates 52 and 53 and the straps 54 and 55 on the top and bottom thereof v respectively. Y i

The springs 50vand 51 extend from bot-h ends of the rear bracket 47 to agree with the Asprings and 31 and form the rear axles.

Each ofthe rigid axle posts 56 is formed f withv the Acentral shaft bearings 57 and top and bottom jaws 58 and 59 respectively, for the ends of the springs and 51 and. vertical side walls or flanges-60 yand 61 to which l Vthe adjustable torque rods 62 and 63 are secured' at their forked ends 64, theother ends of said rods being spring axles to the longitudinalbars 10 and 11 at the same junction points as the torque rods 43 and 44.

The' motor 65 may be carried in the front in the `double truss portion of the main frame between the truss bars 12 and 13 or else- A where if desired, and the shaft 66 of the motor extends rearwardly through the centre of the bearing 20 into the differential casing 48 where it carries the pinion 67 coacting with the crown gear 68 as usual. The lcrown gear 68 drives through the conventional differential the axle shafts 69 through the two universal joints-70and71 on either side ofy the machine and the wheelV axles 72 are spl-ined tothe axle shafts 69 as customary and extend into the shaft bearing 57 and the post .56.

The' rear wheels 73 are offset inwardly from the hubs 74 to bring the treads 75 directly under the clampedV ends of the springs 50-and.`51, the same construction occurring with the front wheels, thereby reducing to the minimum any jar incidentalto steering and driving stresses.4

The brake rubbing members 77 aref shown as mounted on the hub 74, but the drum vis ynot describedas in this application the construction is intended to be confmed to the frame and only the essential subsidiariesare described in detail though in themselves Figures V1 and 2 but asY the construction of the body is a thing separate to itself no further description of the same is made herein.

In the operation vof the car of which this frame forms a'p'art it will' be seen that the Ymotor 1s carried in an extremely rigid part different angle from the front axles without affecting the vdriving powers or the `position of the main frame, all torsional strains being taken up by the torque rods, thereby eliminating. the body stressescommon to motor cars, the rear running gear assuming different positions in'relation to the front running gear due to longitudinal bearing which Yper-` mits the rear axle to be in an entirely different plane tothe fro-nt without causing any distortion of. springsor frame.

Zhat I claim is 1. In a vehicle frame, a pyramidical frame work, body stringers extending. transversely under and beyond said frame work and rigidly secured thereto, front and rear supports` for said frame work and torque rods securedto said stringers adjacent to said frame and extending therefrom to the ends of said supports. y

`2.v In a'vehicle frame, afframe work having an elevated central pointv for Ybody sus pension and bars extending frontwardly and rearwardly therefrom to join the main longitudinal bars, transverse body stringers under said frame and secured thereto, front and rear supports for said frame and tie rods from said supports to said frame.

3. In: a vehicle frame, apy-ramidical frame having a journal member at the rear end and transverse body stringers secured thereto, a rear axle structure supporting a bearing for saidY fra-me, front axle structure having a centralv bracket rigidly secured .to said frame, and torque rods extending from the front axle struct-ure tothe main frameand' from the main frame to thev rear axle structure.

4. In a vehicle frame, longitudinal bars, intermediate Vuprights meeting over said y longitudinal bars, truss bars extending from the front ends of said longitudinal bars rand joined tothe junction of said uprights, a truss bar extending from said junction rearwardly, a journal member rigidly secured to the rear truss bar andto the longitudinal bars, transverse body stringers secured` to the frame, a front bracket rigid with the :I'roiitends of said frame, brace bars extending from the front truss bars and meetingv centrally in said bracket and secured thereto and a rear aXle bracket resiliently supported and forming a .longitudinal bearingfor saidk journal enc. i.

5. vIn a vehicle frame, a pyramidical frame having bars extending downwardly frontwardly and rearwardly `from a central suspension pointand having a journal rat the rear end. and transverse body vstringere secured to its horizontal bars, aV central" bracket rigidly secured to the front end of the frame, flexible members extending longitudinally of said bracket, a Vrear bracket having a distancing member forming a bearing for said journal end, and iieXible members extending from said'rear bracket.

6. In a vehicle frame, a frame Workv formed of longitudinals, uprights and truss bars having body stringers secured thereto,

a pivot mounting for said frame at the rear end, a rigid support forsaid frame at the front end, resilient members from the rigid support on either side forming upper and lower' supports, resilient members at either side oi' said rearpivot mounting at the upper and lower ends, and torque rods secured with said resilient members and extending to the longitudinals andv from there to the rear resilient members. U f

7. In a Vehicle frame, a plurality off bars forming atrussed frame terminating atits l. rear end ina pivot mounting and at its front `end in a rigid' mounting, transverse resili- `ent members supporting said mountings .and 'rigidly spaced atlthe ends, stirrup connections securedto the rigid spacers and eX- teiiding therefrom, and torque rods secured to said stirrups` and pivoted to the mainv frame.

springsupports carrying a centraltloracket,y I

a pivot bearing forming the rear trame sup-` port, spacers for the front and rear springs,

vtorque rods fromV the ends of said i'ront springs to the junctions of the/front transrear torque rods from' the same junctions and connected to the ends of the rear springs.

verse body stringer and the main frame, and

9. In a vehicle frame, a main frame com-v prisinga plurality of bars forming a pyramidicalY structure having a pivot mounting' atthe rear end and a rigid plate mounting* at the front end and front and rear transverse body stringers, springs supporting said rigid plate mounting, front torque rods having stirrup connections with saidi'ront springs and pivoted to the longitudinals ofKV the mainframe at the junctions of the yiront body stringer, a pivot bearing for said lonsprings rigidly joined at the ends' and secured'to said pivot bearing, and torque rods from the aforesaid junctions having forked endsjoined to said springs. f

10.111 a vehicle frame, apyraniid `traine formed of converging longitudinal members, a triangular upright, three suspension ineinbers v'from the apex of said upright,`braces and front and rear brackets.

ll. In a Vehicle'fraine, a ring forming ythe rear endof the frame, a double plate bracket forming the front end of the frame, longigitudinal pivot mounting and` transverse rigid ends ofthe rear tudinalfbars vjoining the lower portions of said ring and saidbracket anda truss and brace structure secured to said longitudinals, rear ring andy front bracket.

12. A'vehicle frame, comprising anassem- `bly of rods in pyramidical form having angularuprights, trusses and braces forming with the Vtront portions of the'longitudinal members and body stringer a motor cage.

Signed at Montreal, Canada, this `16th day of November, 1925..

DONALD GORDON MAoKENZiE. l 

